Questions about my first pinning

I'm going to be starting my first injectible cycle of either test e or prop. I wanted to get some feedback about what you guys would advise as far as injection sites and dosing for my first cycle. I have done one cycle of hdrol previously, put on 22 lbs and kept 14 after pct.
Also assuming it's allowed where do you guys prefer to order your needles and stuff from and what size do you like to use?